- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Delphi "ES20504-12B1" - Not available
BMW - 3, 5 (E39, WB), 7 (E65, WB), 6, X5; AUDI - A6, A4; ALPINA - B7, Roadster V8
